Uberon definition : A myogenic muscular circulatory organ found in the vertebrate cardiovascular system
composed of chambers of cardiac muscle. It is the primary circulatory organ.;
Uberon Homology note : As noted, the hearts of birds and mammals have four chambers that arises from the
two chambers (atrium and ventricle) of the fish heart.[well established][VHOG];
A myogenic muscular circulatory organ found in the vertebrate cardiovascular system
composed of chambers of cardiac muscle. It is the primary circulatory organ.